File:Staff of the Vienna Ambulatorium.JPG|thumb|Edmund Bergler in the Wiener Psychoanalytisches Ambulatorium 1922 (standing, 1. right).
'''Edmund Bergler''' (; ; 1899–1962) was an Austrian-born American psychoanalysis|psychoanalyst
whose books covered such topics as childhood development, mid-life crises, loveless marriages, gambling, and self-defeating behaviors. He was the most important theorist of homosexuality
in the 1950s.